Agent skills for Codex CLI

Create hand-coded SVG illustrations (characters, scenes, icons) as standalone .svg files.

Optimize SVG assets, generate sprites, and convert to React components

Portrait Mode for SVGs — foveated vectorization with 4-zone selective detail.

Complex survey analysis: strata/PSU/weights, variance estimation (Taylor, BRR, jackknife, bootstrap), survey GLM, domain analysis…

Full patch release with npm publish and GitHub Release.

Refine an existing skill's SKILL.md against accumulated gate-failure signals.

Provides guidance for experiment tracking with SwanLab.

Mentor Swedish language learners by selecting YouTube video clips and podcast episodes by CEFR level and skill (listening, reading…

Use when Swift code crosses actors or tasks, handles `Sendable`/`sending`, async isolation, cancellation, `TaskGroup`, `Mutex`, atomics…

When to activate: iOS/macOS accessibility, VoiceOver, accessibilityLabel, accessibilityHint, Dynamic Type, high contrast, SwiftUI…

Apply Swift API Design Guidelines to name, label, and document Swift APIs.

When to activate: iOS/macOS app architecture, MVVM, TCA, Clean Architecture, dependency injection, modular design in Swift apps

Use whenever designing, building, reviewing, or refactoring the UI of a Swift/SwiftUI (or UIKit) view for iOS, iPadOS, macOS, watchOS…

This skill should be used when writing or reviewing Swift code for iOS or macOS projects.

Reviews Swift code for concurrency safety, error handling, memory management, and common mistakes.

Resolve Swift concurrency compiler errors, adopt approachable concurrency (SE-0466), and write data-race-safe async code.

Use for implementing a non-trivial Swift 6.3 feature, bug fix, or refactor.

When to activate: Swift generics, type constraints, where clauses, generic algorithms, type erasure, conditional conformance

Install and configure Swift programming language on Debian Linux for server-side development.

When to activate: Swift/Objective-C interop, @objc, bridging headers, C interop, Swift/C++ interop, NS prefixed types

Swift 6.1–6.3 knowledge: default MainActor isolation, @concurrent, InlineArray, Span, @c interop, module selectors, Swift Testing updates.